PSC AH11: Natural Resources and Environment R&D Services; Water Resources; Basic Research
AH11 is the product and service code (PSC) federal agencies use for “Natural Resources and Environment R&D Services; Water Resources; Basic Research”, in the “R&D – Pollution Cont/Abate” group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 0
- Federal contract spending, FY2025
- $12.7 million
- Share of contract dollars to small businesses, since FY2024
- 47%
Open count as of Oct 28, 2026, 8:02 PM ET. The search counts live, so its total can differ by a notice or two.
Where AH11 sits in the PSC Manual
- Category: Research and Development
- Group AH: Natural Resources and Environment R&D Services
- Group AH1: R&D – Pollution Cont/Abate
- Code AH11: Natural Resources and Environment R&D Services; Water Resources; Basic Research
NAICS codes used with PSC AH11
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with AH11 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC AH11 |
|---|---|---|---|
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $27.4 million | — |
| 541330 | Engineering Services | $166,500 | — |
| 541380 | Testing Laboratories and Services | $71,555 | — |
| 562211 | Hazardous Waste Treatment and Disposal | $45,140 | — |
| 541620 | Environmental Consulting Services | $41,008 | — |
| 532490 | Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $25,045 | — |
Open contracts under each code, with any PSC: NAICS 541715 · NAICS 541330 · NAICS 541380 · NAICS 562211 · NAICS 541620 · NAICS 532490
Who buys under PSC AH11
Agencies with the most contract dollars under AH11 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Department of the Army | $26.6 million |
| Environmental Protection Agency | $752,955 |
| Maritime Administration | $282,508 |
| Smithsonian Institution | $76,000 |
| Nuclear Regulatory Commission | $10,214 |
| Federal Emergency Management Agency | $6,000 |
| Public Buildings Service | $2,936 |
Federal spending under PSC AH11 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $13.7 million |
| FY2025 | $12.7 million |
| FY2026 (incomplete) | $1.3 million |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
Who wins PSC AH11 contracts
| Company | Obligated, last 3 years |
|---|---|
| Taylor-Woolpert, LLC | $9.4 million |
| Creare LLC | $3.2 million |
| Board of Regents of Nevada System of Higher Education | $3 million |
| Colorado State University | $2 million |
| Rector & Visitors of the University of Virginia | $2 million |
| Nevada System of Higher Education | $1.8 million |
| Amentum Technology, Inc. | $772,488 |
| Water Institute of the Gulf | $744,609 |
| University of Notre Dame Du Lac | $720,738 |
| Purdue University | $455,023 |
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC AH11 work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology): who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 541330 Engineering Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 541380 Testing Laboratories and Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
Related PSC codes
- AH12 Natural Resources and Environment R&D Services; Water Resources; Applied Research
- AH13 Natural Resources and Environment R&D Services; Water Resources; Experimental Development
- AH14 Natural Resources and Environment R&D Services; Water Resources; R&D Administrative Expenses
- AH15 Natural Resources & Environment R&D SVCS; Water Resources; R&D Facilities & Maj Equip
- AH16 R&D – Environmental Protection: Pollution Control/Abatement (Management/Support)
- AH17 R&D – Environmental Protection: Pollution Control/Abatement (Commercialized)
Frequently asked questions
What is PSC AH11?
AH11 is the research and development code in the federal Product and Service Code (PSC) Manual named “Natural Resources and Environment R&D Services; Water Resources; Basic Research”, under AH (Natural Resources and Environment R&D Services) and AH1 (R&D – Pollution Cont/Abate). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC AH11?
Most federal contract dollars under PSC AH11 go with NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC AH11?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.